Dynamic vs Static QR Code: What's the Difference?

George Smith — Founder, Klickify Agency

You're printing new business cards. Your designer asks: "Dynamic or static QR code?" You have no idea. You Google it. The results are full of marketing jargon from companies trying to sell you subscriptions. "Dynamic QR codes are more powerful!" "Static QR codes are simpler!" Nobody actually explains what the difference means for your business.

Here's the simple truth. A static QR code has the destination URL baked directly into the pattern. You cannot change it. Ever. If you print a static code on your business card and later change jobs, that code still points to your old LinkedIn profile. You have to reprint every card. A dynamic QR code points to a short link on my server. That short link then redirects to your real destination. You can change the destination anytime without reprinting.

Static is free and permanent in the sense that no company can turn it off. But it's also permanent in the sense that you cannot fix mistakes. Dynamic gives you flexibility but depends on me keeping my server running. Most QR code generators charge monthly for dynamic codes – $9, $35, even $99 per month. Truly Free QR gives you dynamic codes for free. No expiration. No subscription. Here's exactly what you need to know to choose.

Static QR Codes: What You Get (And What You Lose)

Let me start with static because it's simpler. A static QR code encodes your URL directly. When someone scans it, their phone reads the pattern, extracts the URL, and opens it. No middleman. No server redirect. This means the code cannot be deactivated by anyone – not me, not a competitor, not a hacker (unless they replace the physical code with a sticker). It's pure peer-to-peer.

The advantages: static codes are truly permanent. If you encode "https://mywebsite.com" into a static code, that code will work as long as QR code readers exist. Even if my company disappears, your code keeps working. Also, static codes work offline – the phone doesn't need to contact a server to resolve the redirect. And they're slightly faster because there's no round trip to a server.

The disadvantages: you cannot change the URL. Ever. If you print a static code on 10,000 product packages and later change your website, those packages are garbage. You either redirect the old URL (if you control the domain) or you throw away the packages. Also, static codes give you no analytics. You have no idea how many people scanned, when, or from where. You're flying blind.

Static is good for: your permanent homepage, an email address (mailto:), a phone number (tel:), or any link you are absolutely certain will never change. For business cards, product packaging, or menus – anything that might change – static is risky.

Dynamic QR Codes: Flexibility With a Small Tradeoff

Dynamic QR codes work differently. When you create a dynamic code on Truly Free QR, the pattern encodes a short URL like "https://trulyfreeqr.com/abc123". That short URL points to my server. When someone scans, my server looks up where "abc123" should redirect and sends them there. You can change that destination anytime using your edit link.

The advantages: editability. Change your mind? Update your link. Printed 5,000 flyers with a QR code pointing to a product that sold out? Point it to a similar product instead. Your URL changes, but the printed code stays the same. Also, dynamic gives you analytics. I track every scan: timestamp, device type (iPhone, Android, etc.), approximate location (city level), and referral source. You can see which marketing campaigns are working.

The disadvantages: you depend on my server staying online. If Truly Free QR goes down, your codes stop working. I have redundancy and backups, but it's a real risk. Also, dynamic codes require an internet connection when scanning. If someone scans in a subway with no signal, the redirect fails. Static codes would still work because the URL is already in the pattern. And some cheap QR scanners (older apps) might not follow redirects properly, but modern phone cameras handle them fine.

Dynamic is good for: restaurant menus (changing specials), real estate flyers (update virtual tour links), product packaging (update specs or recalls), event tickets (change event details), and business cards (update your contact info without reprinting).

Step-by-Step: How to Create Both Types on Truly Free QR

Here's exactly how to make a static or dynamic QR code. Both are free. Both never expire.

Why Truly Free QR Never Expires (And How We Pay for It)

I run this site on Google AdSense. You see ads on the generator dashboard and on these blog articles. When you click an ad for a CRM or a web host, I get a few cents. That pays for my server costs. I don't charge subscriptions because I don't need to. My costs are low – a few hundred dollars a year. Ad revenue covers that.

The reason I can offer dynamic codes for free while competitors charge $9–$35 a month is overhead. QR Code Generator has dozens of employees, a sales team, and investors demanding returns. I have none of that. I'm a solo developer who got burned by QR code expiration and decided to fix it. My tool costs almost nothing to run, so I give it away.

Safe-Scan protects everyone, regardless of code type. Before any dynamic redirect, I check the destination against Google Safe Browsing. Static codes are not checked because there's no redirect – the phone goes directly to the URL. That means if you encode a malicious URL into a static code, Safe-Scan cannot protect you. So be careful with static codes. Only use URLs you fully control.

Frequently Asked Questions

Try both types right now. Create a static code and a dynamic code. Scan them. Try to edit the dynamic one. See how easy it is. No account, no subscription, no surprises. That's how QR codes should work.